AutoCodes – GMC – U2504 GMC

U2504 GMC Code - Invalid Data Received From Trailer Brake Driver Control Module

Quick Answer

Some devices are constantly receiving information from other devices through serial data communication network. Common causes include Reprogram Trailer Brake Driver Control Module, Faulty Trailer Brake Driver Control Module, Trailer Brake Driver Control Module harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U2504 GMC indicates Invalid Data Received From Trailer Brake Driver Control Module.
Common causes
Common causes include Reprogram Trailer Brake Driver Control Module, Faulty Trailer Brake Driver Control Module, Trailer Brake Driver Control Module harness is open or shorted.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 920
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 17, 2020
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Code U2504 GMC Description

Some devices are constantly receiving information from other devices through serial data communication network. The invalid data code will be set when a receiving device detects a discrepancy in the information it receives from another device causing its integrity to be questioned. The symptom byte listed in the Diagnostic Trouble Code (DTC) Descriptor is for engineering reference only. No external circuit diagnosis is involved. The DTC will set if the Trailer Brake Driver Control Module is not configured properly.
OBDII Code U2504 GMC - Invalid Data Received From Trailer Brake Driver Control Module - AutoCodes.com
U2504 GMC Code - Invalid Data Received From Trailer Brake Driver Control Module

What are the Possible Causes of the DTC U2504 GMC?

  • Reprogram Trailer Brake Driver Control Module
  • Faulty Trailer Brake Driver Control Module
  • Trailer Brake Driver Control Module harness is open or shorted
  • Trailer Brake Driver Control Module circuit poor electrical connection

How to Fix the DTC U2504 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U2504 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the U2504 GMC code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U2504 GMC Code

1. What are the common symptoms of OBDII code U2504 GMC?

The common symptoms of OBDII code U2504 GMC include issues with the trailer brake system, warning lights on the dashboard, and potential loss of trailer brake functionality.

2. What causes the OBDII code U2504 GMC to occur?

The OBDII code U2504 GMC, "Invalid Data Received From Trailer Brake Driver Control Module," is typically triggered by communication errors between the vehicle's onboard computer system and the trailer brake control module.

3. How serious is the OBDII code U2504 GMC?

The severity of the OBDII code U2504 GMC depends on the extent of the communication failure between the vehicle and the trailer brake control module. It is important to address this code promptly to ensure the proper functioning of the trailer brake system.

4. How can I diagnose the OBDII code U2504 GMC?

Diagnosing the OBDII code U2504 GMC involves using a diagnostic scanner to retrieve the code and inspecting the trailer brake system components for any visible damage or loose connections.

5. What are some repair tips for fixing the OBDII code U2504 GMC?

Repair tips for resolving the OBDII code U2504 GMC include checking and repairing any wiring issues, ensuring proper connections between the vehicle and the trailer brake control module, and resetting the code after addressing the underlying problem.

6. Can I drive my vehicle with the OBDII code U2504 GMC active?

It is not recommended to drive your vehicle with the OBDII code U2504 GMC active, as it may indicate potential issues with the trailer brake system that could compromise safety while towing.

7. How much does it cost to repair the OBDII code U2504 GMC?

The cost to repair the OBDII code U2504 GMC can vary depending on the underlying cause of the communication error between the vehicle and the trailer brake control module. It is advisable to consult a professional mechanic for an accurate diagnosis and cost estimate.

8. Can a DIY enthusiast fix the OBDII code U2504 GMC?

While some DIY enthusiasts may be able to address the OBDII code U2504 GMC by checking wiring connections and performing basic troubleshooting, it is recommended to seek assistance from a qualified mechanic for a thorough diagnosis and repair.

9. Is the OBDII code U2504 GMC a common issue in GMC vehicles?

The OBDII code U2504 GMC, "Invalid Data Received From Trailer Brake Driver Control Module," is not uncommon in vehicles equipped with trailer brake systems, especially in GMC trucks and SUVs designed for towing.

10. How can I prevent the OBDII code U2504 GMC from occurring in the future?

To prevent the OBDII code U2504 GMC from occurring in the future, it is essential to regularly inspect and maintain the trailer brake system, ensure proper connections between the vehicle and the trailer brake control module, and address any warning lights or communication errors promptly.

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